body {
    padding: 0;
    margin: 0;
    background-color: #f8f9fb !important;
}

ul li {
    list-style: none;
}

.left-common {
    z-index: 12;
    position: fixed;
    top: 0;
    left: 0;
    width: 180px;
    height: 100%;
    background-color: #2f4050;
}

.lefttopBox {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    padding: 25px;
    text-align: center;
    background-color: #243443;
}

.lefttopBox img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
}

.lefttopBox h3 {
    color: #a9b0c2;
    font-size: 16px;
}

.left-common ul {
    font-size: 14px;
    padding: 0px;
    width: 100%;
    /* background-color: gray; */
}

.left-common ul li {
    cursor: pointer;
    color: #a9b0c2;
    box-sizing: border-box;
    padding: 0px 0 0 15px;
    line-height: 50px;
}

.left-common ul li a {
    color: #a9b0c2;
}

.left-common ul li i {
    margin-right: 10px;
}

.right {
    float: right;
}

.left-common ul li:hover,
.left-common ul li:hover a {
    color: #f6f6f6;
    background-color: #213140;
}

.activeUl {
    color: #f6f6f6;
    background-color: #213140;
}


/* 
.left-oneUl>li:nth-child(2):hover .left-twoUl-passage {
    height: 100px;
} */

.left-twoUl-passage,
.left-twoUl-setting {
    height: 0;
    overflow: hidden;
    transition: all .5s;
}

.clear {
    clear: both;
}

.top-common {
    padding-right: 40px;
    z-index: 9;
    box-sizing: border-box;
    padding-left: 200px;
    position: fixed;
    top: 0;
    line-height: 50px;
    font-size: 18px;
    background-color: white;
    width: 100%;
}

.top-common a {
    text-align: center;
    padding: 2px 20px;
    display: inline-block;
    line-height: 50px;
    margin-left: 20px;
    color: #40586d;
    text-decoration: none;
}

.top-common a:hover {
    background-color: #eeeeee;
}

.rightButton {
    float: right;
}

.middle-content {
    padding: 50px 20px 20px 200px;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    /* background-color: red; */
    min-width: 844px;
    min-height: 100vh;
    /* padding: 70px 5px 20px 185px; */
}

.trans1 {
    transition: all 1s;
}

.middle-content h1 {
    font-size: 24px;
}